CVE-2003-1011: Undefined Security Weakness

Apple Mac OS X 10.0 through 10.2.8 allows local users with a USB keyboard to gain unauthorized access by holding down the CTRL and C keys when the system is booting, which crashes the init process and leaves the user in a root shell...

MacOS X privilege escalation

There are conditions it's possible to obtains local root access having access to USB keyboard during boot process...

Console Root On OSX up to 10.2.8

On all versions of OSX up to and including 10.2.7 and possibly 10.2.8, init can be crashed using a USB keyboard by holding down CTRL-C immediately after boot, and keeping it held down. Init crashes two or three minutes into the boot process and drops you into a root shell. At this point, you can ...